Ca not create users in the UME with j2ee_admin account

Hello,

I have installed WebAS 6.40 on Windows 2003. I installed J2EE and JDI. When I try to create users in the UME (htttp://localhost:50000/useradmin), I get the message "Can Not Create User". Under the com.sap.security.core.ume.service I have ume.persistence_data_source_configuration set to dataSourceConfiguration_r3_roles_db.xml. All the associated r3 connection parameters are set correctly (e.g. r3 connection master user & password, ashost, sysnr etc...). In the ABAP stack under Su01 I have the user j2ee_admin with the appropriate roles assigned. The j2ee_admin user is also a member of the administrators group as seen in http://localhost:50000/useradmin.

I also am not able to make changes to certain parameters in the Visual Administrator with the J2EE_Admin user.

Is there something I am missing? What configuration do I need to do in order to give j2ee_admin all the authorizations to add users in the UME?

Thanks to anyone for ANY help.

Regards,

Tommy